Re: extending relations more efficiently

Jeroen Vermeulen <jtv@xs4all.nl>

From: Jeroen Vermeulen <jtv@xs4all.nl>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, pgsql-hackers@postgresql.org
Date: 2012-05-02T11:16:12Z
Lists: pgsql-hackers
On 2012-05-01 22:06, Robert Haas wrote:

> It might also be interesting to provide a mechanism to pre-extend a
> relation to a certain number of blocks, though if we did that we'd
> have to make sure that autovac got the memo not to truncate those
> pages away again.

Good point.  And just to check before skipping over it, do we know that 
autovacuum not leaving enough slack space is not a significant cause of 
the bottlenecks in the first place?


Jeroen